[mythtv-users] Swapping PCI cards kills X

[Calvin Harrigan]

On 10/14/2010 8:47 AM, Nick Morrott wrote:
> On 14 October 2010 06:00, mike at grounded.net<mike at grounded.net>  wrote:
>>>   /var/log/Xorg.0.log (or something close to that will say why X is failing)
>>
>> Yes, it does show errors but it's not clear what the problem is. I was wondering if maybe I needed to uninstall the nvidia driver, reboot, then reinstall since I changed the card. The grub.conf option that is mentioned in the wiki doesn't make any difference.
>>
>>
>> (==) NVIDIA(0): Depth 24, (==) framebuffer bpp 32
>> (==) NVIDIA(0): RGB weight 888
>> (==) NVIDIA(0): Default visual is TrueColor
>> (==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
>> (**) Oct 13 22:59:19 NVIDIA(0): Enabling RENDER acceleration
>> (II) Oct 13 22:59:19 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
>> (II) Oct 13 22:59:19 NVIDIA(0):     enabled.
>> (EE) Oct 13 22:59:19 NVIDIA(0): Failed to initialize the NVIDIA graphics device PCI:1:0:0.
>
> One possible reason:
>
> Is your nVidia card still living at that PCI address? That address is
> usually hardcoded into your xorg.conf file, so if you move cards
> around and PCI addresses also change, things may break...
>
> $ lspci |grep -i vga
>
> If it has changed, update your xorg.conf file and restart X.
>
> Cheers,
> Nick
>
I suggest looking at this as well.  The line, if it exists, should look 
something like PCI:1:2:3
comment it out and try restarting X.